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RE: [avrdude-dev] Mega163 problem


From: Egbert Jan
Subject: RE: [avrdude-dev] Mega163 problem
Date: Wed, 22 Nov 2006 16:01:27 +0100

Answering to my own post...

> -----Original Message-----
> From: address@hidden 
> [mailto:address@hidden
> ] On Behalf Of Egbert Jan
> Sent: Wednesday, November 22, 2006 3:11 PM
> To: 'Joerg Wunsch'; address@hidden
> Subject: RE: [avrdude-dev] Mega163 problem
> 
> 
> > -----Original Message-----
> > From: Joerg Wunsch [mailto:address@hidden
> > Sent: Wednesday, November 22, 2006 2:59 PM
> > To: address@hidden
> > Cc: Egbert Jan
> > Subject: Re: [avrdude-dev] Mega163 problem
> > 
> > 
> > As Egbert Jan wrote:
> > 
> > > Previous commands succeeded; they returned the values as expected.
> > > Next is the failing command (it is much longer than all previous
> > > commands):
> > 
> > > avrdude: Send: . [1b] . [0b] . [00] . [0c] . [0e] . [10] .
> > [00] . [00]
> > > . [00] . [00] . [00] . [00] . [00] . [ac] S [53] . [00] .
> > [00] . [fd]
> > > avrdude: Recv: . [1b]
> > > avrdude: Recv: . [0b]
> > > avrdude: Recv: . [00] 
> > > avrdude: Recv: . [02] 
> > > avrdude: Recv: . [0e] 
> > > avrdude: Recv: . [10] 
> > > avrdude: Recv: . [c0] 
> > > avrdude: Recv: . [cc] 
> > > avrdude: stk500v2_command(): command failed
> > > avrdude: initialization failed, rc=-1
> > 
> > Command 0x10 is ENTER_PROGMODE_ISP (the command code is
> > always the 6th octet sent to the STK500).  I think that's the 
> > first command where the STK500 is actually going to talk ISP 
> > to the target (everything before has been setting up the 
> > parameters in the STK itself).  So if that fails, it means 
> > the target isn't responding at all.  Either one of the 
> > connections is not OK, or ISP programming had been disabled 
> > somehow (which on the ATmega163 could only happen through 
> > high-voltage parallel programming as there is no JTAG), or 
> > the target's clock is not operational (perhaps due to a wrong 
> > fuse setting).
> 
> TNX so far. I'll hook up to the windows/AVRstudio again. It 
> can also make a detailed trace. I seem to remember that the 
> fuses looked OK but the ISP enable was grayed out with a 
> question mark. I'll be back...
> 
> CU
> Egbert Jan

It seems that avrdude doesn't fill in some essential values in the
CMD_ENTER_PROGMODE_ISP command (10).
On the AVRStudio I get:
Command timeout $c8 (200) ms
Delay pin stability $64 (100) ms
Cmdexedelay $19 (25) ms
Syncloops $20 (32)
Byte delay 0 ms
Poll value $53 (for AVR)
Poll index $03 (for AVR)

Why are these al 0 with avrdude? Should they have been returned with
previous CMD_GET_PARAMETER calls?

Egbert Jan


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